Listen to Smooth Piano online. Smooth Piano is an Unknown language song and is sung by Restaurant Background Music Academy. Smooth Piano, from the album Restaurant Lounge - Restaurant Music for Dinner Party, Background Restaurant Music for Cocktail Party, Piano Relaxing Sounds, Music Shades for Romantic Night & Special Intimate Moments, Piano Mood, was released in the year 2015. The duration of the song is 3:57. Download Unknown songs online from JioSaavn.